Pretty interesting article. The only bit I'd have something to say about it is: > Indeed, it would mean that the designers would have to add a bad experience i

Pretty interesting article. The only bit I'd have something to say about it is: > Indeed, it would mean that the designers would have to add a bad experience in for every three good ones in order to get the positivity ratio right! Which appears to be incorrect as the positivity ratio was supposed to be a minimum as according to that same article. Presumably having more positive experiences doesn't make the situation somehow worse. Nevertheless, maybe it's an interesting or even useful heuristic that you could get away with one bad moment for every three good moments you provide, even if it is about as scientific as an analysis of unicorns on a flat earth.